WO2023244770A1 - Alliages d'aluminium recyclés destinés à être utilisés dans des collecteurs de courant dans des batteries au lithium-ion - Google Patents

Alliages d'aluminium recyclés destinés à être utilisés dans des collecteurs de courant dans des batteries au lithium-ion Download PDF

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Publication number
WO2023244770A1
WO2023244770A1 PCT/US2023/025504 US2023025504W WO2023244770A1 WO 2023244770 A1 WO2023244770 A1 WO 2023244770A1 US 2023025504 W US2023025504 W US 2023025504W WO 2023244770 A1 WO2023244770 A1 WO 2023244770A1
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WO
WIPO (PCT)
Prior art keywords
current collector
recycled
aluminum alloy
iacs
battery component
Prior art date
Application number
PCT/US2023/025504
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English (en)
Inventor
Martti Kaempgen
DaeHoon KANG
Diptarka Majumdar
Rajesh Gopalaswamy
Original Assignee
Novelis Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Novelis Inc. filed Critical Novelis Inc.
Publication of WO2023244770A1 publication Critical patent/WO2023244770A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0404—Methods of deposition of the material by coating on electrode collectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0407—Methods of deposition of the material by coating on an electrolyte layer

Definitions

  • the present disclosure relates to metallurgy generally and more specifically to improving battery current collectors and other components with recycled aluminum alloys.
  • cathode current collectors In conventional lithium-ion batteries, aluminum is used as a cathode current collector.
  • cathode current collectors comprise aluminum alloys containing relatively high amounts of or very pure aluminum.
  • Anode current collectors in comparison, commonly comprise copper. These materials tend to be used because of their high electrical conductivity and electrochemical stability at the potentials encountered in their respective electrodes.
  • the current collector may comprise from 50% to 100% recycled aluminum content, such as 50% recycled aluminum content, 51% recycled aluminum content, 52% recycled aluminum content, 53% recycled aluminum content, 54% recycled aluminum content, 55% recycled aluminum content, 56% recycled aluminum content, 57% recycled aluminum content, 58% recycled aluminum content, 59% recycled aluminum content, 60% recycled aluminum content, 61% recycled aluminum content, 62% recycled aluminum content, 63% recycled aluminum content, 64% recycled aluminum content, 65% recycled aluminum content, 66% recycled aluminum content, 67% recycled aluminum content, 68% recycled aluminum content, 69% recycled aluminum content, 70% recycled aluminum content, 71% recycled aluminum content, 72% recycled aluminum content, 73% recycled aluminum content, 74% recycled aluminum content, 75% recycled aluminum content, 76% recycled aluminum content, 77% recycled aluminum content, 78% recycled aluminum content, 79% recycled aluminum content, 80% recycled aluminum content, 81% recycled aluminum content, 82% recycled aluminum content, 83% recycled aluminum content, 84% recycled aluminum content, 85% recycled aluminum content,
  • the current collector canhave a thicknessfrom O.005 mm to 0.5 mm, such as from 0.005 mm to 0.025 mm, from 0.025 mm to 0.05 mm, from 0.05 mm to 0.075 mm, from 0.075 mm to 0.1 mm, from 0.1 mm to 0.125 mm, from 0.125 mm to 0.15 mm, from 0.15 mm to 0.175 mm, from 0.175 mm to 0.2 mm, from 0.2 mm to 0.225 mm, from 0.225 mm to 0.25, from 0.25 mm to 0.275 mm, from 0.275 mm to 0.3 mm, from 0.3 mm to 0.325 mm, fromO.325 mm to 0.35 mm, from 0.35 mm to 0.375 mm, from 0.375 mm to 0.4 mm, from 0.4 mm to 0.425 mm, from 0.425 mm to 0.45 mm, from 0.45 mm to 0.475 mm, or from 0.475 mm to 0.5 mm
  • the current collector can comprise from 50 wt.% to 99.999 wt.%
  • the current collector can comprise from 50 wt.% to 60 wt.% Al, from 50 wt.% to 60 wt.% Al, from 50 wt.% to 70 wt.% Al, from 50 wt.% to 80 wt.% Al, from 50 wt.% to 90 wt.% Al, from 50 wt.% to 99.999 wt.% Al, from 60 wt.% to 70 wt.% Al, from 60 wt.% to 80 wt.% Al, from 60 wt.% to 90 wt.% Al, from 60 wt.% to 99.999 wt.% Al, from 70 wt.% to 80 wt.% Al, from 70 wt.% to 90 wt.% Al, from 70 wt.% to 99.999 wt.% Al, from 80 wt.% to 90 wt.% Al, from 80 wt.% to 90 wt.% Al, from 80
  • a coating layer may be disposed over at least a portion of a surface of the current collector.
  • the coating layer can comprise a carbonaceous material.
  • the carbonaceous material can include a carbon black material or a Ketjenblack material.
  • the electrical conductivity of the current collector can comprise from 30% IACS to 65% IACS, such as from 30% to 31% IACS, from 31% IACS to 32% IACS, from 33% IACS to 34% IACS, from 34% IACS to 35% IACS, from 35% IACS to 36% IACS, from 36% IACS to 37% IACS, from 37% IACS to 38% IACS, from 38% IACS to 39% IACS, from 40% IACS to 41% IACS, from 41% IACS to 42% IACS, from 42% IACS to 43% IACS, from 43% IACS to 44% IACS, from 44% IACS to 45% IACS, from 45% IACS to 46% IACS, from 46% IACS to 47% IACS, from 47% IACS to 48% IACS, from 48% IACS to 49% IACS, from 49% IACS to 50% IACS, from 50% IACS to 51% IACS, from 51% IACS to 52% IACS, from 52% IACS to 53% IACS, from 53% IACS to 5
  • An example method of this aspect comprises providing a current collector that comprises a recycled content aluminum alloy; and subjecting a surface of the current collector to a coating process to generate a coating layer over at least a portion of the surface of the current collector.
  • the method further comprises subjecting the current collector or the coating layer to a further coating process to form a conductive layer.
  • the conductive layer can comprise one or more of a carbonaceous material or a binder.
  • the coating process can comprise an immersion coating process or a roll-to-roll coating process.
  • the coating process can comprise plasma-assisted physical vapor deposition, plasma-activated physical vacuum deposition, plasma spray physical vapor deposition, vacuum plasma spraying, metal gun-spray deposition, plasma spraying, plasma transferred wire arc spraying, cold spraying, electro-chemical deposition, chemical deposition, sputtering, dip coating, or any combination thereof.
  • Current collectors made by the methods of this aspect may include any of the current collectors described herein.
  • FIG. 1 provides a schematic overview of an example method for making a recycled content aluminum alloy product.
  • FIG. 2 provides a schematic cross-sectional illustration of an example current collector comprising a recycled content aluminum alloy and a coating layer.
  • FIG. 3 provides a schematic cross-section illustrations of an example current collector comprising a recycled content aluminum alloy in a lithium-ion battery.
  • Described herein are battery components such as current collectors that include recycled content aluminum alloys, optionally with a coating layer disposed over at least a portion of a surface of the current collector.
  • the recycled content aluminum alloys used in methods and products described herein include 2xxx series aluminum alloys, 3xxx series aluminum alloys, 3xxx series aluminum alloys, 4xxx series aluminum alloys, 5xxx series aluminum alloys, 6xxx series aluminum alloys, or 7xxx series aluminum alloys.
  • relatively pure aluminum alloys such as Ixxx series aluminum alloys or 8xxx series aluminum alloys are commonly used as a current collector on the cathode side. But using current collectors made from recycled content aluminum alloys may be more sustainable than using relatively pure aluminum alloys. In some examples, depending on the non-aluminum materials present in the recycled content aluminum alloys, current collectors made from recycled content aluminum alloys may have increased stability, conductivity, and longevity. In other examples, characteristics such as stability and conductivity may decrease with the use of recycled content aluminum alloys in current collectors.
  • recycled content aluminum alloys may have an electrical conductivity that is from 30% to 50% of the electrical conductivity of a relatively pure aluminum alloy, such as an aluminum alloy with 99.99% Al or more.
  • the use of recycled content aluminum alloys that, in some cases may lower electrical conductivity, can go against conventional teaching where high electrical conductivity is desired, by providing increased sustainability of aluminum products.
  • a coating layer can be disposed over the current collector to protect the non-aluminum elements within the recycled content aluminum alloy from cominginto contact with lithium in a lithium-ion battery. The coating layer may prevent or limit corrosion and degradation of the current collector, and may increase the stability and conductivity of the current collector.
  • a plate generally has a thickness of greater than about 15 mm.
  • a plate may refer to an aluminum product having a thickness of greater than about 15 mm, greater than about 20 mm, greater than about 25 mm, greater than about 30 mm, greater than about 35 mm, greater than about 40 mm, greater than about 45 mm, greater than about 50 mm, or greater than about 100 mm.
  • a shate (also referred to as a sheet plate) generally has a thickness of from about 4 mm to about 15 mm.
  • a shate may have a thickness of about 4 mm, about 5 mm, about 6 mm, about ? mm, about 8 mm, about 9 mm, about 10 mm, about 11 mm, about 12 mm, about 13 mm, about 14 mm, or about 15 mm.
  • barometric pressure can be about 975 mbar, about 980 mbar, about 985 mbar, about 990 mbar, about 995 mbar, about 1000 mbar, about 1005 mbar, about 1010 mbar, about 1015 mbar, about 1020 mbar, about 1025 mbar, about 1030 mbar, about 1035 mbar, about 1040 mbar, about 1045 mbar, about 1050 mbar, or anywhere in between.
  • a cast product is heated to a temperature ranging from about 400 °C to about 560 °C.
  • the cast product can be heated to a temperature of about 400 °C, about 410 °C, about 420 °C, about 430 °C, about 440 °C, about 450 °C, about 460 °C, about 470 °C, about 480 °C, about 490 °C, about 490 °C, about 500 °C, about 510 °C, about 520 °C, about 520 °C, about 540 °C, about 550 °C, or about 560 °C.
  • the homogenization step includes heating a cast product to a first temperature for a first period of time followed by heating to a second temperature for a second period of time.
  • a cast product can be heated to about 465 °C for about 3.5 hours and then heated to about 480 °C for about 6 hours.
  • the homogenized product can then be hot rolled at a temperature between 300 °C to 450 °C to form a hot rolled plate, a hot rolled shate or a hot rolled sheet having a gauge between 3 mm and 200 mm (e.g., 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm, 60 mm, 65 mm, 70 mm, 75 mm, 80 mm, 85 mm, 90 mm, 95 mm, 100 mm, 110 mm, 120 mm, 130 mm, 140 mm, 150 mm, 160 mm, 170 mm, 180 mm, 190 mm, 200 mm, or anywhere in between).
  • temperatures and other operating parameters can be controlled so that the temperature of the hot rolled intermediate product upon exit from the hot rolling mill is no more than 470 °C, no more than 450 °C, no more than 440 °C, or no more than 430 °C.
  • Cast, homogenized, or hot-rolled products can be cold rolled using cold rolling mills into thinner products, such as a cold rolled sheet.
  • the cold rolled product can optionally have a gauge between about 0.5 to 10 mm, e.g., between about 0.7 to 6.5 mm.
  • the cold rolled product can have a gauge of 0.5 mm, 1.0 mm, 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm, 3.5 mm, 4.0 mm, 4.5 mm, 5.0mm, 5.5 mm, 6.0 mm, 6.5 mm, 7.0 mm, 7.5 mm, 8.0 mm, 8.5 mm, 9.0 mm, 9.5 mm, or 10.0 mm.
  • the cold rolling can be performed to result in a final gauge thickness that represents a gauge reduction of up to 85% (e.g., up to 10%, up to 20%, up to 30%, up to 40%, up to 50%, up to 60%, up to 70%, up to 80%, or up to 85% reduction) as compared to a gauge prior to the start of cold rolling.
  • an interannealing step can be performed during the cold rolling step, such as where a first cold rolling process is applied, followed by an annealing process (interannealing), followed by a second cold rolling process.
  • the interannealing step can be performed at a temperature of from about 300 °C to about 450 °C (e.g., about 310 °C, about 320 °C, about 330 °C, about 340 °C, about350 °C, about 360 °C, about 370 °C, about 380 °C, about 390 °C, about 400 °C, about 410 °C, about 420 °C, about 430 °C, about 440 °C, or about 450 °C).
  • the interannealing step comprises multiple processes.
  • the heat-treated product can optionally undergo a pre-aging treatment by reheating before coiling.
  • the pre-aging treatment can be performed at a temperature of from about 70 °C to about 125 °C for a period of time of up to 6 hours.
  • the pre-aging treatment can be performed at a temperature of about 70 °C, about 75 °C, about 80 °C, about 85 °C, about 90 °C, about 95 °C, about 100 °C, about 105 °C, about 110 °C, about 115 °C, about 120 °C, or about 125 °C.
  • the pre-aging treatment can be performed for about 30 minutes, about 1 hour, about 2 hours, about 3 hours, about 4 hours, about 5 hours, or about 6 hours.
  • the pre-aging treatment can be carried out by passing the heat-treated product through a heating device, such as a device that generates or emits radiant heat, convective heat, induction heat, infrared heat, or the like.
  • the cast product can be hot rolled to a plate having a final gauge thickness of about 10 mm to about 175 mm, about 15 mm to about 150 mm, about 20 mm to about 125 mm, about 25 mm to about 100 mm, about 30 mm to about 75 mm, or about 35 mm to about 50 mm.
  • plates maybe rolled into thinner metal products, such as sheets.
  • the metals for use in the methods and products described herein include aluminum alloys, for example, 2xxx series aluminum alloys, 3xxx series aluminum alloys, 4xxx series aluminum alloys, 5xxx series aluminum alloys, 6xxx series aluminum alloys, or 7xxx series aluminum alloys.
  • the materials for use in the methods and products described herein include non-ferrous materials, including aluminum, aluminum alloys, magnesium, magnesium-based materials, magnesium alloys, magnesium composites, titanium, titanium-based materials, titanium alloys, copper, copper-based materials, composites, sheets used in composites, or any other suitable metal, non-metal or combination of materials.
  • Monolithic as well as non-monolithic such as roll-bonded materials, cladded alloys, clad layers, composite materials, such as but not limited to carbon fiber-containing materials, or various other materials are also useful with the methods and products described herein.
  • aluminum alloys containing iron are useful with the methods and products described herein.
  • exemplary 2xxx series aluminum alloys for use in the methods and products described herein can include AA2001, A2002, AA2004, AA2005, AA2006, AA2007, AA2007A, AA2007B, AA2008, AA2009, AA2010, AA2011, AA2011A, AA2111, AA2111A, AA2111B, AA2012, AA2013, AA2014, AA2014A, AA2214, AA2015, AA2016, AA2017, AA2017A, AA2117, AA2018, AA2218, AA2618, AA2618A, AA2219, AA2319, AA2419, AA2519, AA2021, AA2022, AA2023, AA2024, AA2024A, AA2124, AA2224, AA2224A, AA2324, AA2424, AA2524, AA2624, AA2724, AA2824,
  • Non-limiting exemplary 3xxx series aluminum alloys for use in the methods and products described herein can include AA3002, AA3102, AA3003, AA3103, AA3103A, AA3103B, AA3203, AA3403, AA3004, AA3004A, AA3104, AA3204, AA3304, AA3005, AA3005A, AA3105, AA3105A, AA3105B, AA3007, AA3107, AA3207, AA3207A, AA3307, AA3009, AA3010, AA3110, AA3011, AA3012, AA3012A, AA3013, AA3014, AA3015, AA3016, AA3017, AA3019, AA3020, AA3021, AA3025, AA3026, AA3030, AA3130, or AA3065.
  • Non-limiting exemplary 5xxx series aluminum alloys for use in the methods and products described herein product can include AA5182, AA5183, AA5005, AA5005A, AA5205, AA5305, AA5505, AA5605, AA5006, AA5106, AA5010, AA5110, AA5110A, AA5210, AA5310, AA5016, AA5017, AA5018, AA5018 A, AA5019, AA5019 A, AA5119, AA5119A, AA5021, AA5022, AA5023, AA5024, AA5026, AA5027, AA5028, AA5040, AA5140, AA5041, AA5042, AA5043, AA5049, AA5149, AA5249, AA5349, AA5449A, AA5050, AA5050A, AA5050C, AA5150
  • Non-limiting exemplary 6xxx series aluminum alloys for use in the methods and products described herein can include AA6101, AA6101A, AA6101B, AA6201, AA6201 A, AA6401, AA6501, AA6002, AA6003, AA6103, AA6005, AA6005A, AA6005B, AA6005C, AA6105, AA6205, AA6305, AA6006, AA6106, AA6206, AA6306, AA6008, AA6009, AA60 10, AA6110, AA6110 A, AA6011 , AA6111, AA6012, AA6012 A, AA6013 , AA6113, AA6014, AA6015, AA6016, AA6016A, AA6116, AA6018, AA6019, AA6020, AA6021, AA6022, AA6023, AA6024, AA6025, AA6026, AA60
  • Non-limiting exemplary 7xxx series aluminum alloys for use in the methods and products described herein can include AA7011, AA7019, AA7020, AA7021, AA7039, AA7072, AA7075, AA7085, AA7108, AA7108A, AA7015, AA7017, AA7018, AA7019A, AA7024, AA7025, AA7028, AA7030, AA7031, AA7033, AA7035, AA7035A, AA7046, AA7046A, AA7003, AA7004, AA7005, AA7009, AA7010, AA7011, AA7012, AA7014, AA7016, AA7116, AA7122, AA7023, AA7026, AA7029, AA7129, AA7229, AA7032, AA7033, AA7034, AA7036, AA7136, AA7136
  • the recycled content aluminum alloy products can be used to make battery components, such as electronic substrates, which may be suitable for use in applications as a current collector or a device incorporating such a current collector, such as an electrode, an electrochemical cell, or a capacitor.
  • the recycled content aluminum alloy may be provided as a sheet or a foil, but is generally referred to herein as a layer in the context of a current collector.
  • the recycled content aluminum alloy layer may be coated with or otherwise in contact with a coating layer, which may also be referred to herein as a protection layer or a conductive protection layer.
  • the recycled content aluminum alloy may alternatively be provided as a coating over a coating layer, which may optionally comprise a metal or metal alloy foil. In some cases, both the recycled content aluminum alloy and the coating layer may comprise foils.
  • FIG. 2 provides a schematic cross-sectional illustration of an example current collector 200 comprising a recycled content aluminum alloy 205 and a coating layer 210 disposed over a surface of the recycled content aluminum alloy 205.
  • the coating layer 210 is shown in contact with only one surface or side of the recycled content aluminum alloy 205, but other configurations may be used, such as where the coating layer 210 is in contact with different edges, surfaces, or faces of the recycled content aluminum alloy 205.
  • the current collector 200 can have a thickness from 0.005 mm to 0.5 mm.
  • the current collector 200 can have a thickness from 0.005 mm to 0.5 mm, such as from 0.005 mm to 0.025 mm, from 0.025 mm to 0.05 mm, from 0.05 mm to 0.075 mm, from 0.075 mm to 0.1 mm, from 0.1 mm to 0.125 mm, from 0.125 mm to 0.15 mm, from 0.15 mm to 0.175 mm, from 0.175 mm to 0.2 mm, from 0.2 mm to 0.225 mm, from 0.225 mm to 0.25, from 0.25 mm to 0.275 mm, from 0.275 mm to 0.3 mm, from 0.3 mm to 0.325 mm, from 0.325 mm to 0.35 mm, from 0.35 mm to 0.375 mm, from 0.375 mm to 0.4 mm, from 0.4 mm to 0.425 mm, from 0.425 mm to 0.45 mm, from 0.45 mm to 0.475 mm, or from 0.475 mm to 0.5 mm
  • the recycled content aluminum alloy 205 may comprise from 50% to 100% recycled aluminum content.
  • the recycled content aluminum alloy 205 can include 50% recycled aluminum content, 51% recycled aluminum content, 52% recycled aluminum content, 53% recycled aluminum content, 54% recycled aluminum content, 55% recycled aluminum content, 56% recycled aluminum content, 57% recycled aluminum content, 58% recycled aluminum content, 59% recycled aluminum content, 60% recycled aluminum content, 61% recycled aluminum content, 62% recycled aluminum content, 63% recycled aluminum content, 64% recycled aluminum content, 65% recycled aluminum content, 66% recycled aluminum content, 67% recycled aluminum content, 68% recycled aluminum content, 69% recycled aluminum content, 70% recycled aluminum content, 71% recycled aluminum content, 72% recycled aluminum content, 73% recycled aluminum content, 74% recycled aluminum content, 75% recycled aluminum content, 76% recycled aluminum content, 77% recycled aluminum content, 78% recycled aluminum content, 79% recycled aluminum content, 80% recycled aluminum content, 81% recycled aluminum content, 82% recycled aluminum content, 83% recycled aluminum content, 84% recycled aluminum content, 85% recycled aluminum content, 86% recycled aluminum content
  • the recycled content aluminum alloy 205 may include from 50 wt.% to 99.999 wt.% Aluminum (Al).
  • the recycled content aluminum alloy 205 may include from 50 wt.% to 60 wt.% Al, from 50 wt.% to 60 wt.% Al, from 50 wt.% to 70 wt.% Al, from 50 wt.% to 80 wt.% Al, from 50 wt.% to 90 wt.% Al, from 50 wt.% to 99.999 wt.% Al, from 60 wt.% to 70 wt.% Al, from 60 wt.% to 80 wt.% Al, from 60 wt.% to 90 wt.% Al, from 60 wt.% to 99.999 wt.% Al, from 70 wt.% to 80 wt.% Al, from 70 wt.% to 90 wt.% Al, from 70 wt.% to 99.999 wt.% Al
  • Some example techniques for creating the coating layer 210 can include, but are not limited to a physical deposition process, a sputter deposition process, an evaporation deposition process, a chemical deposition process, an electrodeposition process, an electroplating process, a chemical vapor deposition process, or an atomic layer deposition process.
  • the coating layer 210 may partially coat the surface, or may completely coat the surface. Such a configuration may be achieved, for example, by using a non-directional deposition technique, such as an electrodeposition process, which can be a solution-phase process and result in complete coating or encapsulation of the recycled content aluminum alloy 205 by the coating layer 210.
  • the coating layer 210 may be a multilayer coating. Each layer of a multilayer coating may have the same or different compositions from other layers.
  • the coating layer 210 may be generated on the recycled content aluminum alloy
  • the one or more characteristics can include a surface area of the recycled content aluminum alloy 205, a surface roughness of the recycled content aluminum alloy 205, a surface oxide layer, electrical conductivity, thermal conductivity, corrosion resistance, active material reactivity, wetting character, or adhesion character. It may be beneficial for the coating layer 210 or the current collector 200 as a whole to have an electrical conductivity of from 30% IACS to 65% IACS.
  • the current collector 200 can have an electrical conductivity of from 30% IACS to 65% IACS, such as from 30% to 31% IACS, from 31% IACS to 32% IACS, from 33% IACS to 34% IACS, from 34% IACS to 35% IACS, from 35% IACS to 36% IACS, from 36% IACS to 37% IACS, from 37% IACS to 38% IACS, from 38% IACS to 39% IACS, from 40% IACS to 41% IACS, from 41% IACS to 42% IACS, from 42% IACS to 43% IACS, from 43% IACS to 44% IACS, from 44% IACS to 45% IACS, from 45% IACS to 46% IACS, from 46% IACS to 47% IACS, from 47% IACS to 48% IACS, from 48% IACS to 49% IACS, from 49% IACS to 50% IACS, from 50% IACS to 51% IACS, from 51% IACS to 52% IACS, from 52% IACS to 53% IACS, from 53% IACS,
  • Aspect 1 is a battery component, comprising a current collector comprising a recycled content aluminum alloy; and a coating layer disposed over at least a portion of a surface of the current collector.
  • Aspect 3 is the battery component of any preceding or subsequent aspect, wherein the current collector comprises a 3xxx series aluminum alloy or a 5xxx series aluminum alloy.
  • Aspect 8 is the battery component of any preceding or subsequent aspect, wherein the current collector comprises from 80 wt.% to 99 wt.% Al.
  • Aspect 9 is the battery component of any preceding or subsequent aspect, wherein the coating layer comprises a carbonaceous material.
  • Aspect 11 is the battery component of any preceding or subsequent aspect, wherein the coating layer has a thickness of from 5 nm to 100 pm.
  • Aspect 20 is the method of any previous or subsequent aspect, wherein the coating process comprises an immersion coating process or a roll-to-roll coating process.

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  • Manufacturing & Machinery (AREA)
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Abstract

L'invention concerne des composants de batterie comprenant un collecteur de courant et une couche de revêtement disposée sur au moins une partie d'une surface du collecteur de courant. Le collecteur de courant peut comprendre un alliage d'aluminium à contenu recyclé. Dans certains exemples, le collecteur de courant peut comprendre de 50 % à 100 % de contenu d'aluminium recyclé. L'alliage d'aluminium à contenu recyclé peut être, par exemple, un alliage d'aluminium de série 3 xxx ou un alliage d'aluminium de série 5 xxx.
PCT/US2023/025504 2022-06-17 2023-06-16 Alliages d'aluminium recyclés destinés à être utilisés dans des collecteurs de courant dans des batteries au lithium-ion WO2023244770A1 (fr)

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US63/366,556 2022-06-17

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7472740B2 (en) 2003-06-24 2009-01-06 Novelis Inc. Method for casting composite ingot
US7748434B2 (en) 2006-03-01 2010-07-06 Novelis Inc. Sequential casting of metals having high co-efficients of contraction
WO2022104214A1 (fr) * 2020-11-16 2022-05-19 Novelis Inc. Revêtements métalliques sur substrats et utilisation pour collecteurs de courant dans des batteries au lithium-ion

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7472740B2 (en) 2003-06-24 2009-01-06 Novelis Inc. Method for casting composite ingot
US8927113B2 (en) 2003-06-24 2015-01-06 Novelis Inc. Composite metal ingot
US7748434B2 (en) 2006-03-01 2010-07-06 Novelis Inc. Sequential casting of metals having high co-efficients of contraction
WO2022104214A1 (fr) * 2020-11-16 2022-05-19 Novelis Inc. Revêtements métalliques sur substrats et utilisation pour collecteurs de courant dans des batteries au lithium-ion

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